01582 932 444 training@ozonegroup.training

Build Your Career inEnergy Assessment & Building Compliance

City & Guilds approved training in Domestic EPCs, Retrofit, SAP, Non-Domestic Energy Assessment and more. Flexible learning. Expert tutors. Real-world support.

Expert Tutors
Learn from industry professionals
Flexible Learning
Classroom, online live & guided learning
Practical Support
Assignments & portfolio guidance included
5.0Google Rating
500+ Learners Trained in Last Year
Ongoing Portfolio Support
City & Guilds Approved Centre
Industry-recognised UK qualification
Experienced Tutors
Taught by working assessors
Online Learning Materials
Comprehensive study resources & portal access
Portfolio Support
Hands-on assignment guidance
Upcoming Course Dates
Limited places available – book early to secure your spot!
View Calendar
Join 1000+ successful
assessors trained with us!

Featured Courses

Our most popular Energy Assessor qualifications

Why Ozone

Why Choose Ozone Training

We're working Energy Assessors who train new assessors — not a generic training company.

  • Run by practising DEAs since 2011
  • City & Guilds approved course materials and assessment
  • Real-world tips, not just exam-pass content
  • Lifetime tutor support after qualification
  • Spread cost in interest-free instalments
  • 100% pass guarantee with free re-sits

What Our Learners Say

Real reviews from our Google profile

Frequently Asked Questions

Can I pay for my course in instalments? How does the payment plan work+

Yes. We offer flexible interest-free payment plans on most of our training courses, making it easier to spread the cost of your qualification.

To secure your place, you'll pay an initial deposit when you book your course. The remaining balance (including VAT) is then divided into two equal monthly instalments.

Your instalments are due on the same date in each of the following two months after your initial payment. For example, if you pay your deposit on the 10th of the month, your remaining payments will be due on the 10th of each of the next two months.

There are no hidden charges or interest when payments are made as agreed. We'll confirm your payment schedule before your course starts, so you'll know exactly when each instalment is due.

If you have any questions about our payment plans or need help choosing the option that's right for you, our team will be happy to assist before you enrol.

What happens after I purchase a course?+

Once you've booked your course, we'll guide you through every step of the process, making your learning journey as smooth and straightforward as possible.

Immediately after your purchase, you'll receive a confirmation email containing your booking details. Please check your inbox and your junk or spam folder, as confirmation emails can occasionally be filtered by your email provider.

The confirmation email will also contain a secure link to complete your enrolment. You'll be asked to upload any required documents so we can process your registration and prepare your course. Completing your enrolment as soon as possible helps us ensure everything is ready before your training begins.

If you've booked an online or self-study course, you'll also receive access to our Student Assessment Management System (SAMS), where you'll find your learning materials, assignments and course resources.

Before your course starts, we'll send you everything you need, including your course schedule, joining instructions and any preparation required. For online courses, you'll receive details of how to join your live training sessions. For classroom courses, we'll provide the venue information and everything you need for the day.

Once your training has been completed, you'll work through your assignments and portfolio. Your tutor will review each submission, provide feedback where necessary and sign off your work as you successfully complete each assessment.

After all of your assignments have been signed off, your portfolio is reviewed by our Internal Quality Assurer (IQA) as part of our quality assurance process. Once this has been completed, your qualification is claimed from the awarding organisation, and your certificate is typically issued within two weeks of the final sign-off.

After receiving your qualification, we'll guide you through the next steps, including joining an accreditation scheme, choosing any equipment you may need and preparing to start your career as a qualified Energy Assessor. Our support continues even after you've qualified, so you'll always have someone to turn to if you need advice or guidance.

What is the difference between Classroom, Online Live and Self-Study?+

All three training options lead to the same recognised qualification. The difference is simply how the training is delivered, allowing you to choose the learning style that best suits your schedule and preferences.

Classroom Training is ideal for learners who prefer face-to-face teaching in a traditional classroom environment. You'll attend our training centre, work alongside other learners and receive direct support from your tutor throughout the course. This option offers plenty of opportunities to ask questions and gain hands-on guidance.

Online Live Training delivers the same tutor-led experience remotely. You'll join your trainer and fellow learners in live, interactive sessions from the comfort of your home or office. You can ask questions in real time, take part in discussions and receive the same level of tutor support as classroom learners, without the need to travel.

Self-Study (Start Stop Learning) is designed for those who need maximum flexibility. You'll have access to all the learning materials through our online learner portal and can study whenever it suits you. If you need help, you can book video or telephone sessions with one of our tutors, giving you expert support while allowing you to learn entirely at your own pace.

Whichever option you choose, you'll receive the same high-quality training, ongoing tutor support and guidance to help you successfully complete your portfolio and achieve your qualification.

Ready to start your DEA career?

Speak to our team or book your course today. We'll guide you from enrolment to your first paid EPC.